QED
QED is a well-established British audio brand, best known for designing high-quality cables and connectivity solutions for hi-fi, home cinema and installation audio systems. Founded in the UK, QED has built a strong reputation for engineering-led design, focusing on signal integrity, reliability and real-world performance rather than marketing gimmicks.
QED cables are widely used in ceiling speaker installations, where dependable connections and long-term durability are essential. Speaker cables, HDMI leads and audio interconnects are engineered to minimise signal loss and interference, helping ceiling speakers and amplifiers perform at their best once installed. This makes QED a trusted choice for both professional installers and home users planning permanent audio setups.
A key strength of the QED range is consistency. Products are clearly specified, well tested and designed to deliver predictable performance across different system types, from simple stereo ceiling speaker systems to larger multi-room and home cinema installations. Build quality is robust, ensuring cables remain reliable even when routed through walls, ceilings and trunking.
By combining British engineering expertise with a focus on measurable performance, QED has become a go-to brand for audio connectivity. Their cables are an ideal complement to quality ceiling speaker systems, providing the reliable foundation needed for clean, uninterrupted sound.









